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Bill@SiR

Posted 22 December 2016 - 12:11 PM

They make more power, but not as much as the advertised gain due to housing restrictions. I have not done an A/B test since they are pretty new. But a Stage 3 to a Gen 2 GTX3071r is a 150hp upgrade.

If "they make more power with the same spool" isn't good enough I can share some dyno results. But I dont know the OP, and as a first post im not going to just pour out data, Lately everyone seems to like to steal my IP for their own gain.

If more data would make you change your buying decision, then great, I can provide data that your looking for. But since its new I spent a good deal of time and money in it for someone to claim it as their own.

BAZ007

Posted 22 December 2016 - 01:50 PM

They make more power, but not as much as the advertised gain due to housing restrictions. I have not done an A/B test since they are pretty new. But a Stage 3 to a Gen 2 GTX3071r is a 150hp upgrade.

If "they make more power with the same spool" isn't good enough I can share some dyno results. But I dont know the OP, and as a first post im not going to just pour out data, Lately everyone seems to like to steal my IP for their own gain.

If more data would make you change your buying decision, then great, I can provide data that your looking for. But since its new I spent a good deal of time and money in it for someone to claim it as their own.

Well can you post your dynograph with big SIR logo watermarked on the background so that if anyone is to post any of your findings the SIR is always going to hit them in the face first, having to acknowledge it.

Steven

Posted 22 December 2016 - 02:18 PM

Steven

Stock

Member

9 posts

Joined 18-April 15

I was just trying to figure out where they stand because your website says the gen 2 3071 makes 1200 crank horsepower, and your current stage 3 make over 1100whp. I just got a car off my lift and am thinking about starting my build. The guy that does my tuning (Tom at tscompusa) just picked up a stage 3 plus from you. It's not easy to make these decisions! If you prefer that I call or pm you I can do that.

Bill@SiR

Posted 22 December 2016 - 03:12 PM

Bill@SiR

Stage 4 Member

Vendors

465 posts

Joined 21-December 12

LocationMiami FL

I was just trying to figure out where they stand because your website says the gen 2 3071 makes 1200 crank horsepower, and your current stage 3 make over 1100whp. I just got a car off my lift and am thinking about starting my build. The guy that does my tuning (Tom at tscompusa) just picked up a stage 3 plus from you. It's not easy to make these decisions! If you prefer that I call or pm you I can do that.

You have a Gen 1 GTX3071R, it can make 1100whp in a max effort situation. The best current ET with those turbos is an 8.77@158mph

A Gen 2 is a 50hp upgrade due to other restrictions Its rated at 1200 crank. Most Dynojet's read very about 50hp less than crank hp in a GTR. I would expect 160mph (depending on the weight and supporting modifications, and weather conditions) trap speeds based on dyno data of that 50hp delta.

colo_evo

Posted 22 December 2016 - 09:09 PM

colo_evo

Stock

Member

94 posts

Joined 20-September 16

You can make a dyno graph with a flat 600tq to say 7000rpm (thats 799hp). However to do that you are going to need boost in the 22-24psi range. Now the next problem is for the dyno this is "Safe" However to achieve that boost, the turbo speed will increase as the RPMS go up. On a shift in the real world what you get is a torque spike, ESPECIALLY you rev it higher than 7000.

I've always wondered what happens to all these stock block cars pushing high wgdc after a shift. Is there some sort of anticipation logic that can decrease wgdc/timing/torque post shift to avoid spikes?

Bill@SiR

Posted 24 December 2016 - 08:38 AM

Bill@SiR

Stage 4 Member

Vendors

465 posts

Joined 21-December 12

LocationMiami FL

I've always wondered what happens to all these stock block cars pushing high wgdc after a shift. Is there some sort of anticipation logic that can decrease wgdc/timing/torque post shift to avoid spikes?

EcuTek does have an upshift wastegate map, so that you can drop the wastegate during the shift. But this looses a decent amount of turbo speed. So by doing so keeps the boost fairly flat if calibrated properly, however it does slow the car down.

Again you cant cheat physics. You can do what you can, and that upshift boost spike prevention is one of them.

KrieGTR

Posted 23 February 2017 - 12:40 PM

Basically the difference here is better response for a given power level, or more power with the same response, I was very impressed from the set we did.

Im offering 3 of the Gen 2 Garrett GTX sizes for the OEM Manifold

GTX 2860 A 46mm sized unit for ultra fast response (keep in mind stock is 43 journal bearing, these are ball bearing), I have not made one but it would HAVE to spool faster than stock, Capable of an estimated 850whp

GTX 2867 A 50mm sized unit still keeping very quick response, these are the first set we did, and they made 938whp at 27psi of boost. Really amazing out of a GT28 and the OEM compressor housing.

Keep in mind dyno is in 2wd for load, however the power is about 100hp more than a typical Gen 1 setup

And GTX3071R 54mm sized unit, In the OEM manifold it is still a very quick responding setup, I have only used the Gen 1 those typically make 1050whp, and again i would anticipate 1150whp or so, with ultra quick response from the OEM exhaust housing paired with a relatively small turbo

haseeb

Posted 17 August 2018 - 02:38 AM

haseeb

Stock

Member

2 posts

Joined 11-April 17

I would offer an upgrade, would just be an aero upgrade on the compressor side, I would keep the same profile so it would be a drop in for existing customers, just should make a bit more power, but only way to find out is to do it.